[T3] Early front brake pistons?

Jim Adney jadney at vwtype3.org
Thu Jan 8 08:49:56 PST 2015

I know I've asked this before, but I neglected to record the answer.

Pistons for early (drum) front brakes come in 2 styles: narrow slot and
wide slot. When was each style used?

It turns out that late rear pistons are the same diameter (7/8") but have
a medium width slot. How interchangable are these parts?


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